| 邹婷,张玉玺,曹璐,施盟泉,张云龙,赵榆霞.化学通报,2022,85(6):697-703. |
| 表活性单体NaAMCnS及其聚合物的合成及性能研究 |
| Synthesis and Properties of Sulfonated Amphiphilic Monomers and its Polymers |
| 投稿时间：2021-10-19 修订日期：2021-12-02 |
| DOI： |
| 中文关键词: 表活性单体 疏水缔合聚合物 聚丙烯酰胺 微嵌段 |
| 英文关键词:surfactant monomer hydrophobic associating polymer polyacrylamide micro block |
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| 中文摘要: |
| 针对疏水缔合聚合物水溶性不足的问题，本文合成了三种含磺酸根的阴离子型表活性单体2-丙烯酰胺基辛烷基磺酸钠（NaAMC8S）、2-丙烯酰胺基十二烷基磺酸钠（NaAMC12S）和2-丙烯酰胺基十八烷基磺酸钠（NaAMC18S），用氢谱、碳谱、质谱、红外光谱对其结构进行了表征。通过表面张力法和电导率法测定了NaAMC8S和NaAMC12S的临界胶束浓度（CMC）；用荧光探针技术研究了其增溶作用；以偶氮二异丁脒盐酸盐（AIBA）为引发剂，在水溶液中研究了丙烯酰胺（AM）分别与NaAMC8S、NaAMC12S的二元共聚反应，测定了两种单体在共聚反应中的竞聚率。通过控制AM与NaAMC8S、NaAMC12S的投料比制备得到两个系列聚合物P(AM/NaAMC8S)、P(AM/NaAMC12S)，研究了表活性单体含量对聚合物疏水缔合作用及耐温抗盐性能的影响。实验结果表明，NaAMC8S、NaAMC12S具有良好的表面活性和增溶作用，聚合物P(AM/NaAMC8S)、P(AM/NaAMC12S)具有显著的疏水缔合作用，聚合物P(AM/NaAMC12S)的耐温抗盐性能明显优于商用单体2-丙烯酰胺-2-甲基丙磺酸钠(NaAMPS)制备的聚合物P(AM/NaAMPS)。 |
| 英文摘要: |
| In order to solve the problem of insufficient water solubility of hydrophobically associating polymers, three anionic surfactant monomers containing sulfonates, sodium 2-acrylamido-octane sulfonate (NaAMC8S), sodium 2-acrylamido-dodecane sulfonate (NaAMC12S) and sodium 2-acrylamido- octadecane sulfonate (NaAMC18S), were synthesized in this study. Their structures were characterized by 1H-NMR, 13C-NMR, MS and IR spectra. The critical micelle concentration (CMC) of NaAMC8S and NaAMC12S was determined by surface tension method and conductivity method. Their solubilization properties were studied by fluorescent probe technology. Using 2,2"-azobis [2-methylpropionamidine] dihydrochloride (AIBA) as the initiator, the copolymerization of acrylamide(AM) and NaAMC8S, NaAMC12S were carried out respectively in aqueous solution. The reactivity ratios of AM and NaAMC8S, NaAMC12S were determined. Two series of polymers P(AM/NaAMC8S) and P(AM/NaAMC12S) were obtained by controlling the feed ratio of AM to NaAMC8S, NaAMC12S. The effects of the content of surfactant monomers on the hydrophobic associating, temperature and salt resistance of the polymers were studied. The results showed that NaAMC8S and NaAMC12S have surface activity and solubilization, P(AM/NaAMC8S) and P(AM/NaAMC12S) have significant hydrophobic association, and the temperature and salt resistance of P(AM/NaAMC12S) is much better than that of P(AM/NaAMPS) prepared by commercial monomer sodium 2-acrylamido-2-methylpropane sulfonate (NaAMPS). |
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